controller: added layer controller

controller/__init__.py

@@ -0,0 +1 @@
+from .user_controller import controller

controller/user_controller.py

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+from flask import Blueprint, render_template, request
+from models import User
+from service import UserService
+from form import LoginForm, UpdateForm
+
+controller = Blueprint('controller', __name__)
+
+service_user = UserService()
+
+class UserController:
+
+    @controller.route('/', methods=['GET', 'POST'])
+    def index():
+        form = LoginForm(request.form)
+        if request.method == 'POST':
+            model_user = User()
+            model_user.name = form.username.data
+            model_user.password = form.password.data
+            service_user.create(model_user)
+        return render_template('index.html', title='Sign In', form=form)
+
+    @controller.route('/list', methods=['GET', 'POST'])
+    def list_all() -> str:
+        if request.method == 'POST':
+            user_delete = request.form['delete']
+            service_user.delete(user_delete)
+        users = service_user.list_all()
+        return render_template('list_all.html', users=users)
+
+    @controller.route('/update', methods=['GET', 'POST'])
+    def update() -> str:
+        form = UpdateForm(request.form)
+        if request.method == 'POST':
+            model_user = User()
+            model_user.name = form.new_username.data
+            model_user.password = form.new_password.data
+            service_user.update(form.old_username.data ,model_user)
+        return render_template('update.html',  form=form)